Running Nagios on Vmware
Frost, Mark {PBC}
mark.frost1 at pepsico.com
Thu Jul 8 16:55:37 CEST 2010
In my experience, there are weird things that happen with timing. That is, the time
on a VM should be sync'd with a time source so no time is lost. However, the VM
has what I like to think of as "seconds of variable length".
So when we tested with a VM a few years ago, the latency and execution timings and
calculations were really screwy. There were checks that Nagios thought ran in
"-0.15" seconds, for example. Considering that this was information that we cared
about, we chose to stick with a physical box.
And yes, I/O is now an increasing concern for us so a VM would be even less likely.
That said, I know another team who has much lighter requirements (they just want
alerts, don't care about latencies (yet)) and they've been on a VM for years now with
Nagios.
Mark
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